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Finding the Fourth Proportional to 508,208.57, 762,383.25 and 171,345.65

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Solution

The fourth proportional to 508,208.57, 762,383.25 and 171,345.65 is: 257,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,208.57 : 762,383.25 = 171,345.65 : x
  2. Step 2: Convert to fraction form
    508,208.57/762,383.25 = 171,345.65/x
  3. Step 3: Cross multiply
    508,208.57x = 762,383.25 × 171,345.65
  4. Step 4: Simplify right side
    508,208.57x = 130,631,053,520.36
  5. Step 5: Solve for x
    x = 130,631,053,520.36/508,208.57
  6. Step 6: Final answer
    x = 257,042.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.